- Extension
- .wk1
- .psd
- Format
- Binary
- Binary
- Category
- Spreadsheet
- Raster Image
- Developer
- IBM
- Adobe Systems
- Description
- Lotus Worksheet (wk1) is a file type used by the Lotus 1-2-3 spreadsheet application. It is a binary file format used to store worksheets, which can contain numerical and textual data, as well as formulas, charts, and images. It is now considered an obsolete file type and is replaced by the newer xlsx format.
- A PSD file is an image file created by Adobe Photoshop, a professional image-editing program often used to enhance digital photos and create web graphics. It is the native format used to save files in Photoshop. PSD files may include image layers, adjustment layers, layer masks, annotations, file information, keywords, and other Photoshop-specific elements. They are commonly created and shared among graphics professionals.
- MIME Type
- application/vnd.lotus-1-2-3
- image/vnd.adobe.photoshop
